[CLOSE] LOOP [(r)]
|
This document covers the following topics:
For an explanation of the symbols used in the syntax diagram, see Syntax Symbols.
Belongs to Function Group: Reporting Mode Statements
The LOOP statement is used to close a processing loop. It
causes processing of the current pass through the loop to be terminated and
control to be returned to the beginning of the processing loop.
When the processing loop for which the LOOP statement is
issued is terminated (that is, when all records have been processed or
iterations have been performed), execution continues with the statement after
the LOOP statement.
The LOOP statement is used with the following statements:
CALL FILE,
CALL LOOP,
FIND,
FOR,
HISTOGRAM,
PARSE XML,
READ, READ RESULT
SET (SQL), READ
WORK FILE, REPEAT,
SELECT (SQL),
SORT.
A LOOP statement, in addition to closing a processing
loop, will eliminate all field references to FIND, FIND FIRST,
FIND UNIQUE,
READ and
GET statements contained
within the loop.
A field within a view may be referenced outside the processing loop by using the view name as a qualifier.
This statement is for reporting mode only.
A LOOP statement may not be specified based on a
conditional statement such as IF or AT BREAK.
| Syntax Element | Description |
|---|---|
LOOP
(r)
|
Statement Reference Notation:
The |
Notes:
LOOP
statement, will be closed automatically by an END statement.
LOOP statement. But with respect to
good coding practice, you are not recommended to do so.
FIND ...
READ ...
READ ...
LOOP (0010) /* closes all loops
FIND ...
READ ...
READ ...
LOOP /* closes loop initiated on line 0030
LOOP /* closes loop initiated on line 0020
LOOP /* closes loop initiated on line 0010